Continuing the bad netiquette of replying to myself...
On Sat, Apr 28, 2001 at 12:25:53PM +0100, I wrote:
I hope my understanding of this problem is correct and the above information is useful. I don't think I've got to the bottom of the CPU usage problem, but this was certainly part of it.
I've discovered the cause of the CPU usage problem. I had ARCHIVE_TO_MBOX set to the default of 2. It appears that the archiver eats an awful lot of processor power - so much that the backlog caused by the earlier bug was taking ages to clear. The qrunner would sit in the second part of ToArchive::process for around fifteen minutes whilst holding onto the list lock which stopped the web interface from working.
Once I discovered that's where the problem was I set ARCHIVE_TO_MBOX to 1 and suddenly huge amounts of email that had been delayed for nearly a week started flooding through.
So, in summary, a P133 with 96Mb of RAM is not up to running even a relatively low volume list (50 messages per day) when ARCHIVE_TO_MBOX is set to 2. :-)
-- Mike Crowe <mac@fysh.org>